Dr. Rajarshi is a trained microbiologist with a professional experience of more than 1.5 decades encompassing academics, research and advocacy in the field of biotechnology. With an MBA (HR) to his credit, he has been associated with undergraduate and post graduate teaching and guiding doctoral theses. An ardent research planner, implementer and achiever with multicultural experience of spearheading in establishment, training and development of laboratory operations. As an AVP (R&D) he has kept himself rooted to planning, designing, establishing, standardizing laboratories to the scale of recognition and certification. Specialized in Fecal Seprage Management wastewater treatment, recycling and reuse as well as resource recovery/ reuse of solid waste; Rajarshi has put himself online with the present breed of Septage Management researchers globally. His work in antibiotic resistance spread in environment and sale of genetically modified foods has led the government (ICMR& FSSAI) to come up with policies and NAPs. With numerous publications to his credit and with a knack of human resource development has been instrumental in setting up and advocating on Septage Management and Wastewater treatment, and bio solid waste reuse/recycling.